Gaya APA

Butler-Bowdon, T., Subekti, R, C. (2005). 50 Self-Help Classics . Jakarta: Bhuana Ilmu Populer.

Gaya MLA

Butler-Bowdon, Tom., Subekti, Rachma, Christiani. "50 Self-Help Classics". Jakarta: Bhuana Ilmu Populer, 2005. Text.